Should I upgrade to Dos 1.8.1, Spark 1.6.3, Dialog 1.8.1.54, Phantom 1.8.1.54?

[MountainGuy]

My pair of Phantoms have been running just fine since the update in July which is 1 generation prior to this current update.   I've been on an extended trip and now I see that Spark wants to update everything in my system. 

Any reason to not do the update?  It is working just fine right now.  Solid. Stable. Wireless.

Thanks!